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S.I. (Structural Integrity) is the newest addition to the Humboldt Nutrients family of products. This silicate additive is formulated to supply your root zone with the silicates your plants need to build strong, thick cell walls and cellular membranes. When your stalks are stronger your plant has the ability to hold heavier fruits and flowers, which means less time staking your plants for support and more overall production.
6.0% Water Soluble Silicon (Si)
Derived from: SilicateDirections Application Rates: Hydroponics Application: Use 1-3ml per gallon of reservoir water. Change nutrient solution weekly to avoid excess sediment. General Application: Use 1-3ml per gallon of water every 1-2 weeks. Foliar Application: Use 1-3ml per gallon of finished spray solution.